Make sure you can mount it securely especially in the rear of a 'C', some have a tendency to pound. The factories often place a 12x12 plywood square inside the wall so you have something solid to screw into. That is usually marked using a decal. Once you mount it, add a web strap to secure it, I have seen many rip out of the wall. Try to limit any and all movement while its in the travel position.
You didn't mention if you already have a front tv with a power booster antenna. If its not pre-wired for a rear tv then you have to snake the wires behind drawers, water heater, fridge etc. You will need a power antenna and coax port to bring in cable and or satellite, make sure you use the correct cable for a sat signal if you plan to do that.
My 2004 Fourwinds 5000 28A came with a TV cabinet in the corner of the wall backing to the shower and was pre-wired. I also ran an electrical cord from inverter beneath RV and up through the floor to run TV from house batteries. I only use this if kids in camper and they use the TV/DVD to watch their movies. You could also do similar in yours. Good luck.
Not overly difficult even if BR never had a tv, just need a 120Vac source and space somewhere to mount it. Within or the side of a sturdy cabinet can work with the appropriate mount, bear in mind it should be in a location where outputs from antenna/satellite or other AV equipment can be accessed or installed. Good luck, with every RV we've owned I have always upgraded rig's stock AV equipment, greatly enhancing our onboard entertainment experience.